I personally have had at least some success using pseudo science to explain tricks. The best example was with a trick with matches, using one to pop the other into the air. Someone had asked me how I did it, and I said it was micro-filamental energy, a but like magnetism but more violent, etc. etc. He went for it, hook, line, and sinker. Lucky for me (not that this would happen often) he googled micro-filaments and they're actually real. It took him a really long time to figure out it wasn't actual science, and he really only figured it out because someone told him. Although I do see what you mean when you say it might be a bit heady for some people. As for logical and engaging patter, I feel like the best principle to use is that your props have to be symbols for something. The signed card represents the spectator's ambitions in an ACR. The three coins in the Gadabout Coins are three buddies that don't like to be separated. First the one in the pocket joins the two in the hand so they can hang out, then at the end the two in the hand get stage fright and join the one in the pocket. [NB: If you follow this up with: "And that's when I know to stop performing, when the coins get stage fright." It works pretty well as a finisher.] Is there an effect where a signed coin bends and then unbends? I'm not very experienced in coin magic and even less aware of what effects are out there. If there is, you could liken the signed coin to someone's attitude/ambitions/spirit thingy and talk about how people put tasks and jobs and responsibilities on your shoulders which bends the spirit. "Open your hand, how many responsibilities do you have?" "WHAAAA?" "But you see, (close your hand again) if you get enough stuff done, or even if you just watch an inspiring video, you feel empowered and you're able to stand straight again. Check it out." And then the coin's straight. Thoughts? What do y'all think, are these logical enough, or is the declaration that the coins are buddies to arbitrary?